WO2019224916A1 - Dispositif de climatisation et entrepôt équipé de celui-ci - Google Patents

Dispositif de climatisation et entrepôt équipé de celui-ci Download PDF

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Publication number
WO2019224916A1
WO2019224916A1 PCT/JP2018/019677 JP2018019677W WO2019224916A1 WO 2019224916 A1 WO2019224916 A1 WO 2019224916A1 JP 2018019677 W JP2018019677 W JP 2018019677W WO 2019224916 A1 WO2019224916 A1 WO 2019224916A1
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WIPO (PCT)
Prior art keywords
temperature
air
warehouse
air conditioning
section
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Application number
PCT/JP2018/019677
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English (en)
Japanese (ja)
Inventor
圭吾 岡島
崇 米澤
英希 大野
達也 ▲雑▼賀
田中　学
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2018/019677 priority Critical patent/WO2019224916A1/fr
Priority to JP2020520906A priority patent/JP7012838B2/ja
Publication of WO2019224916A1 publication Critical patent/WO2019224916A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/523—Indication arrangements, e.g. displays for displaying temperature data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air

Definitions

  • the present invention relates to an air conditioner and a warehouse having the air conditioner.
  • Some refrigerated warehouses have huge storage rooms. Also, in the refrigerated warehouse, the doors are opened and closed frequently because the stored items are loaded and unloaded. As a result, temperature variations are likely to occur in the warehouse.
  • Patent Document 1 Conventionally, a refrigeration system that keeps the temperature of the refrigeration room uniform has been proposed (see, for example, Patent Document 1).
  • the refrigeration system disclosed in Patent Document 1 has a plurality of temperature sensors that measure the temperature in the refrigeration room and a blower, and in the refrigeration room, from a relatively low temperature region to a relatively high temperature region. Control the blower to send air.
  • Patent Document 1 tries to keep the entire refrigeration room at a constant temperature, including a space in which an object to be cooled is not placed. Since this refrigeration system tries to cool a space in which an object to be cooled is not placed, cooling is performed more than necessary. In this case, the refrigeration output is wasted and the air conditioning load increases.
  • the present invention has been made to solve the above-described problems, and provides an air conditioner that suppresses power consumption and a warehouse having the same.
  • An air conditioning apparatus includes an environment detection sensor that detects a temperature for each of a plurality of sections in which an air-conditioning target space is partitioned in a horizontal direction and a vertical direction, and a load that air-conditions the air-conditioning target space. And a side unit.
  • a warehouse according to the present invention includes the above-described air conditioner and a plurality of temperature sensors provided in the plurality of sections as the environment detection sensor.
  • the temperature of each section is detected for a plurality of sections in which the air-conditioning target space is divided in the horizontal direction and the vertical direction, so that the user can store the stored items in the sections having a temperature suitable for storage. Can be put. Since the section where the stored items are not placed is not air-conditioned more than necessary, power consumption can be suppressed.
  • FIG. 3 is a block diagram illustrating a configuration example of a remote controller illustrated in FIG. 2.
  • FIG. 3 is a diagram illustrating an example of a table stored in a memory illustrated in FIG. 2.
  • FIG. 10 is a side view of the temperature distribution shown in FIG. 9. It is a top view which shows an example of the simulation result of the temperature distribution of the air-conditioning object space when the two load side units shown in FIG. 1 are applied. It is a side view of the temperature distribution shown in FIG. It is a figure which shows an example of the image which the display apparatus shown in FIG. 2 displays. It is a flowchart which shows the operation
  • FIG. 23 is a block diagram illustrating a configuration example of a server illustrated in FIG. 22. It is a flowchart which shows the operation
  • FIG. 25 is a schematic diagram for explaining operations in steps S208 to S209 shown in FIG.
  • FIG. 1 is an external perspective view showing an example of a warehouse to which the air-conditioning apparatus according to Embodiment 1 of the present invention is applied.
  • the air conditioner 1 air-conditions the air-conditioning target space of a warehouse 40 that stores stored items.
  • the warehouse 40 is a refrigerated warehouse.
  • three storage shelves 30a to 30c are installed.
  • the air conditioner 1 includes a load side unit 10 that air-conditions a space in a warehouse 40, a heat source side unit 20 that is connected to the load side unit 10 through a refrigerant pipe, and a remote controller 50.
  • a load side unit 10 that air-conditions a space in a warehouse 40
  • a heat source side unit 20 that is connected to the load side unit 10 through a refrigerant pipe
  • a remote controller 50 a remote controller 50.
  • the refrigerant piping that connects the load side unit 10 and the heat source side unit 20 is not shown in the drawing.
  • the signal lines connecting the remote controller 50 to the load side unit 10 and the heat source side unit 20 are not shown in the figure.
  • the load side unit 10 is attached to the wall of the warehouse 40.
  • FIG. 1 shows a case where storage shelves 30a to 30c are installed in the warehouse 40, but the number of storage shelves is not limited to three. The number of storage shelves may be one or two or more.
  • FIG. 1 shows a case where the outline of the warehouse 40 is a box, but the outline shape of the warehouse 40 is not limited to a box.
  • the communication means between the remote controller 50 and the load side unit 10 and the heat source side unit 20 may be wired or wireless.
  • FIG. 2 is a refrigerant circuit diagram of the air-conditioning apparatus shown in FIG.
  • the heat source side unit 20 includes a compressor 21 and a heat source side heat exchanger 22.
  • the load side unit 10 includes an expansion device 12, a load side heat exchanger 13, a fan 14, and a wind direction adjusting unit 15.
  • the compressor 21, the heat source side heat exchanger 22, the expansion device 12, and the load side heat exchanger 13 are connected by a refrigerant pipe, and a refrigerant circuit 60 in which the refrigerant circulates is configured.
  • the compressor 21 compresses and discharges the refrigerant circulating in the refrigerant circuit 60.
  • the compressor 21 is a compressor such as a rotary compressor, a scroll compressor, a screw compressor, and a reciprocating compressor.
  • the heat source side heat exchanger 22 is a heat exchanger that functions as a condenser.
  • the expansion device 12 expands the refrigerant flowing from the heat source side heat exchanger 22 to reduce the pressure.
  • the expansion device 12 is, for example, an electric expansion valve that can adjust the flow rate of the refrigerant.
  • the load side heat exchanger 13 is a heat exchanger that functions as an evaporator.
  • the load side heat exchanger 13 is, for example, a fin-and-tube heat exchanger.
  • the fan 14 sucks air from the inside of the warehouse 40, and flows the air after exchanging heat with the refrigerant in the load side heat exchanger 13 into the warehouse 40.
  • the fan 14 is a fan such as a propeller fan or a sirocco fan, for example.
  • the air direction adjusting unit 15 adjusts the flow direction of the air that the fan 14 sends into the warehouse 40.
  • the refrigerant flow during the cooling operation will be described with reference to the refrigerant circuit diagram shown in FIG.
  • the heat source side heat exchanger 22 condenses by performing heat exchange with air and releasing heat.
  • the condensed and liquefied refrigerant flows into the expansion device 12 via the refrigerant pipe.
  • the liquid refrigerant is decompressed and expanded.
  • the liquid refrigerant exchanges heat with the air in the warehouse 40 and absorbs heat from the air. Thereby, the air of the warehouse 40 is cooled.
  • the refrigerant that has absorbed heat evaporates into a gas.
  • the vaporized refrigerant returns to the compressor 21 of the heat source side unit 20 via the refrigerant pipe.
  • FIG. 3 is an external perspective view showing a configuration example of the storage shelf shown in FIG. Since the storage shelves 30a to 30c have the same configuration, the configuration of the storage shelf 30a will be described here, and the description of the storage shelves 30b and 30c will be omitted.
  • the storage shelf 30a is composed of four poles 32, a top plate 33, and upper, middle and lower support plates 34a to 34c. Although not shown in the drawing, the top plate 33 and the support plates 34a to 34c are provided with a plurality of openings through which air flows.
  • An environment detection sensor 36 is attached to the storage shelf 30a. Three temperature sensors 37 are arranged at equal intervals as the environment detection sensor 36 on each of the support plates 34a to 34c. In FIG. 3, the reference numerals of the temperature sensors are omitted from the support plates 34a and 34b.
  • the environment detection sensor 36 is described as a plurality of temperature sensors 37, but may be a plurality of sensors that detect both temperature and humidity.
  • Each support plate of the support plates 34a to 34c has a space for installing three stored items corresponding to the positions of the three temperature sensors 37.
  • a space indicating the temperature detected by each temperature sensor 37 is defined as a section 31 shown in FIG.
  • a section 31 indicated by a broken line in FIG. 3 is a space between the support plate 34a and the support plate 34b and corresponds to a space in which the temperature is detected by the temperature sensor 37a.
  • FIG. 4 is a top view of the warehouse shown in FIG.
  • FIG. 5 is a side view of the warehouse shown in FIG.
  • the identifiers of the section 31 are the X axis, Y axis, and Z axis shown in the figure. These are expressed in three-dimensional coordinates using the three axes. In the first embodiment, the identifier of the partition 31 is referred to as an address.
  • the addresses of the 27 sections 31 are represented by coordinates (x1, y1, z1) to (x3, y3, z3). In FIGS. 4 and 5, some coordinates of the section 31 are displayed for each section 31. This address also serves as an identifier for uniquely identifying the temperature sensor 37.
  • FIG. 6 is a diagram schematically showing three-dimensional data constructed from temperature data detected by the temperature sensor shown in FIG. By associating the address information with the detection value of the temperature sensor 37 for each section 31, as shown in FIG. 6, the three-dimensional data indicating the three-dimensional temperature distribution by the temperature data detected by the 27 temperature sensors 37 is obtained. Built.
  • the three-dimensional data shown in FIG. 6 shows not only the temperature distribution on the horizontal plane (two-dimensional by the X axis and Y axis) but also the temperature distribution in the vertical direction (Z-axis arrow direction) for each section 31.
  • FIG. 7 is a block diagram showing a configuration example of the remote controller shown in FIG.
  • the remote controller 50 includes a control unit 51 that controls the air conditioner 1, an operation unit 52 for a user using the warehouse 40 to input an instruction, and a display device 53.
  • the control unit 51 is, for example, a microcomputer. As illustrated in FIG. 2, the control unit 51 includes a memory 54 that stores a program and a CPU (Central Processing Unit) 55 that executes processing according to the program. As shown in FIG. 7, the control unit 51 includes a communication unit 56, a refrigeration cycle control unit 57, and a timer 58 that measures time. When the CPU 55 executes the program, the communication unit 56 and the refrigeration cycle control unit 57 are configured in the air conditioner 1.
  • the communication means 56 is connected to all temperature sensors 37 for communication.
  • the connecting means may be wired or wireless.
  • the communication unit 56 stores a plurality of detection values acquired for each period P1 in the memory 54.
  • the memory 54 stores a table that records detection values corresponding to addresses.
  • the three-dimensional data shown in FIG. 6 is constructed from the temperature data stored in the table.
  • the communication means 56 may store the time when the detection value is acquired from the temperature sensor 37 in the memory 54 together with the detection value as time data indicating the detection time. In this case, each temperature data has time data indicating the time of detection.
  • the communication unit 56 may generate an image indicating the temperature distribution of the air-conditioning target space using the three-dimensional data and display the image on the display device 53.
  • FIG. 8 shows an example of a table stored in the memory shown in FIG.
  • the table shown in FIG. 8 is an example of three-dimensional data including temperature data of a plurality of sections 31 partitioned in the horizontal direction and the vertical direction in the air conditioning target space.
  • the addresses AD1 to AD27 correspond to the coordinates (x1, y1, z1) to (x3, y3, z3) of the section 31.
  • temperature data including a detection value of the temperature sensor 37 is recorded corresponding to the address information.
  • the temperature data includes coordinate information in addition to the address information and the detection value.
  • the temperature data may not include the coordinate information.
  • the memory 54 may store information indicating the relationship between the address and the coordinate information separately.
  • the table shown in FIG. 8 shows the case where the temperature data has time data, but it does not have to have time data. Time data may be stored in the table.
  • the refrigeration cycle control means 57 allows the refrigeration cycle of the refrigerant circuit 60 so that the temperature of the designated section matches the target temperature Ts within a certain range.
  • the refrigeration cycle control means 57 controls any one of the rotational speeds of the compressor 21 and the fan 14, the opening degree of the expansion device 12, and the wind direction of the wind direction adjusting unit 15.
  • the refrigeration cycle control means 57 controls the refrigeration cycle so that the average value of the temperatures of the plurality of designated sections matches the target temperature within a certain range.
  • the display device 53 is, for example, a liquid crystal display.
  • the display device 53 displays an image of the temperature distribution generated by the communication unit 56.
  • the operation unit 52 is, for example, a touch panel. The operation unit 52 is used when a user who uses the warehouse 40 designates a section 31 in which stored items are stored.
  • the remote controller 50 sets the target temperature based on the section designated by the user will be described with reference to two types of temperature distribution examples.
  • FIG. 9 is a top view showing an example of the simulation result of the temperature distribution of the air-conditioning target space where the air conditioning apparatus shown in FIG. 1 performs air conditioning.
  • FIG. 9 shows the temperature distribution of the uppermost section 31 in the storage shelves 30a to 30c shown in FIG.
  • FIG. 10 is a side view of the temperature distribution shown in FIG.
  • FIG. 10 shows the temperature distribution of the nine compartments 31 in the storage shelf 30b shown in FIG.
  • Each section 31 is indicated by addresses AD1 to AD27. 9 and 10 show a case where the temperature of the air sucked from the warehouse by the load side unit 10 is set to 6 [° C.].
  • the temperature of the air layer 301 is 7.2 to 7.6 [° C.]
  • the temperature of the air layer 302 is 7.6 to 8.0 [° C.]
  • the temperature of the air layer 303 Is 8.0 to 8.4 [° C.].
  • the temperature of the air layer 304 is 8.4 to 8.7 [° C.]
  • the temperature of the air layer 305 is 8.7 to 9.1 [° C.]
  • the temperature of the air layer 306 is 9.1 to 9.
  • the temperature of the air layer 307 is 9.5 to 9.9 [° C.].
  • the communication unit 56 notifies the refrigeration cycle control unit 57 of the address AD10 of the designated section when the user sets the section 31 indicated by any one of the addresses AD12, AD15, and AD18 as the designated section.
  • the refrigeration cycle control means 57 sets a target temperature in the designated section.
  • FIG. 11 is a top view showing an example of a simulation result of the temperature distribution in the air-conditioning target space when two load-side units shown in FIG. 1 are applied.
  • 12 is a side view of the temperature distribution shown in FIG. 11 and 12 show a case where two load-side units 10 are arranged to face each other.
  • FIG. 11 shows the temperature distribution of the uppermost section 31 in the storage shelves 30a to 30c shown in FIG.
  • FIG. 12 shows the temperature distribution of nine sections 31 in the storage shelf 30b shown in FIG.
  • Each section 31 is indicated by addresses AD1 to AD27.
  • 11 and 12 show a case where the temperature of the air sucked from the warehouse by the load side unit 10 is set to 6 [° C.].
  • the temperature of the air layer 312 is 6.4 to 6.8 [° C.]
  • the temperature of the air layer 311 is 6.8 to 7.2 [° C.]
  • the temperature of the air layer 301 is Is 7.2 to 7.6 [° C.]
  • the temperature of the air layer 302 is 7.6 to 8.0 [° C.].
  • the temperature of the air layer 303 is 8.0 to 8.4 [° C.]
  • the temperature of the air layer 304 is 8.4 to 8.7 [° C.]
  • the temperature of the air layer 305 is 8.7 to 9.
  • the temperature of the air layer 306 is 9.1 to 9.5 [° C.].
  • the temperature of the section 31 of addresses AD12, AD15, AD18 and AD24 is lower than the temperature of the section 31 of addresses AD3, AD6, AD9, AD21 and AD27. I understand that.
  • the temperature of the section of address AD15 is lower than that of addresses AD13 and AD14, and the higher the height of section 31, the higher the temperature. Is low.
  • FIGS. 9 and 10 indicate that the temperature of the section 31 of the addresses AD12, AD15, and AD18 is lower than that of the other sections 31. Therefore, it can be seen from FIGS. 9 and 10 that if the stored item is placed in the section 31 of any one of the addresses AD10, AD13, and AD16, the stored item is cooled more quickly.
  • FIG. 11 and FIG. 12 show that the temperature of the section 31 of the addresses AD12, AD15 and AD18 is the lowest, and the temperature of the section 31 of the addresses AD13 and AD14 is next to these sections 31. From FIG. 11 and FIG. 12, it can be seen that if the stored item is placed in the section 31 of any one of the addresses AD12 to AD15 and AD18, the stored item is cooled more quickly.
  • the communication means 56 notifies the refrigeration cycle control means 57 of the address AD10 of the designated section when the user sets the section 31 indicated by any one of the addresses AD12 to AD15 and AD18 as the designated section.
  • the refrigeration cycle control means 57 sets a target temperature in the designated section.
  • FIG. 13 is a diagram illustrating an example of an image displayed by the display device illustrated in FIG.
  • FIG. 13 is an example of an operation image in which the user designates a storage location for stored items.
  • FIG. 14 is a flowchart showing an operation procedure of the air-conditioning apparatus according to Embodiment 1 of the present invention.
  • the user refers to the temperature distribution and determines the address of the storage location.
  • the communication unit 56 notifies the refrigeration cycle control unit 57 of the section 31 corresponding to the input address number.
  • the refrigeration cycle control means 57 sets the section 31 notified from the communication means 56 as a designated section (step S101).
  • the communication unit 56 refers to the three-dimensional data stored in the memory 54, reads out the temperature data corresponding to the input address from the memory 54, and causes the display device 53 to display the temperature data.
  • the user refers to the operation image shown in FIG. 13 and confirms the current temperature of the section 31 specified by the address.
  • the user inputs the target temperature Ts via the operation unit 52 and then selects the confirm button 130.
  • the communication unit 56 notifies the input target temperature Ts to the refrigeration cycle control unit 57.
  • the refrigeration cycle control means 57 sets the target temperature Ts in the designated section (step S102). Subsequently, the refrigeration cycle control means 57 calculates the target time tm until the target time tm until the temperature of the designated section reaches the target temperature Ts from the refrigeration capacity and the volume of the air conditioning target space (step) S103).
  • the memory 54 stores the volume of the air conditioning target space.
  • the refrigeration cycle control means 57 controls the wind direction adjusting unit 15 so that the wind direction of the air sent from the load side unit 10 faces the designated section (step S104). And the refrigerating cycle control means 57 starts the timer 58, and starts the measurement of the time t (step S105). The refrigeration cycle control means 57 determines whether or not the time t has elapsed until the target time tm (step S106). When the time t reaches the target time tm, the process proceeds to step S107.
  • step S107 the refrigeration cycle control means 57 determines whether or not the detection value of the temperature sensor 37 in the designated section has reached the target temperature Ts within the target time tm. As a result of the determination in step S107, when the temperature of the designated section does not reach the target temperature Ts within the target time tm, the refrigeration cycle control means 57 increases the refrigeration capacity (step S108) and returns to step S105. In step S108, the refrigeration cycle control means 57 increases the rotational speed of the compressor 21, for example. On the other hand, as a result of the determination in step S107, when the temperature of the designated section reaches the target temperature Ts within the target time tm, the refrigeration cycle control means 57 lowers the refrigeration capacity (step S109). In step S109, the refrigerating cycle control means 57 reduces the rotation speed of the compressor 21, for example.
  • the refrigeration cycle control means 57 may maintain the current air conditioning control state.
  • the user can know the temperature of each section 31 in the warehouse from the three-dimensional data, and can place stored items in the section 31 having a temperature suitable for storage. Compared to the case where stored items are arbitrarily placed in the warehouse, the air conditioning apparatus 1 does not need to perform wasteful air conditioning. Further, when the temperature of the section 31 where the stored item is placed does not belong to the storage temperature range, the air conditioner 1 adjusts the wind direction to lower the temperature of the stored section 31 to the storage temperature range, so that the refrigerating capacity There is no need to raise. Furthermore, when the user designates the compartment 31 for stored items and sets the target temperature, the air conditioning apparatus 1 is prevented from performing unnecessary air conditioning on the compartment 31 where the stored items are not placed. As a result, not only the air conditioning load is reduced, but also the power consumption can be suppressed.
  • the display format of the three-dimensional data for the user is not limited to this case.
  • the communication unit 56 may cause the display device 53 to display information obtained by combining the address information and the temperature of the section 31 corresponding to the address information at regular time intervals. Further, if the user knows the temperature distribution shown in FIGS. 9 to 12, if the temperature of one section 31 among the plurality of sections 31 is known, the temperature of the other section 31 is predicted and the stored item is stored. You may decide the designated division suitable for.
  • the air blower which can adjust a wind direction and an air volume may be provided in the warehouse 40 shown in FIG.
  • the refrigeration cycle control unit 57 controls the air volume and the air direction of the blower, so that the air direction and the air volume can be adjusted in a wider range than in the case of only the air direction adjusting unit 15.
  • the number of fans installed in the warehouse 40 is not limited to one.
  • the number of blowers installed in the warehouse 40 may be a number proportional to the area of the storage area in the warehouse 40.
  • FIG. 15 is an external perspective view showing another configuration example of a warehouse to which the air-conditioning apparatus according to Embodiment 1 of the present invention is applied.
  • the storage shelf is not installed in the warehouse 40a.
  • the temperature sensor 37 may be attached to the pillar 41.
  • three temperature sensors 37 are attached to each of the four pillars 41 at equal intervals in the vertical direction (Z-axis arrow direction). Even in this case, three-dimensional data is constructed from the temperature data detected by the twelve temperature sensors 37.
  • a plurality of poles in which two or more temperature sensors 37 are arranged at equal intervals in the vertical direction may be installed on the floor surface.
  • FIG. 16 is a top view showing an example of a warehouse different from FIG.
  • a total of seven load-side units 10 are installed in the warehouse 40b shown in FIG.
  • four load side units 10 and three load side units 10 are arranged to face each other.
  • twelve columns 41 are provided in the air conditioning target space in the warehouse 40b.
  • three temperature sensors 37 are attached to each column 41 at different heights.
  • the three-dimensional data shown in FIG. 6 is constructed for the temperature of the air-conditioning target space.
  • FIG. 17 is a block diagram illustrating a configuration example of a wireless unit that wirelessly transmits the detection value of the temperature sensor illustrated in FIG. 3 to the control unit.
  • the communication unit 56 has a wireless communication function.
  • a wireless communication technology for example, there is a short-range wireless communication technology such as Bluetooth (registered trademark).
  • the wireless unit 70 includes three buffer memories 71a to 71c connected to three temperature sensors 37 installed on one support plate, a timer 72, a control circuit 73, a wireless communication circuit 74, a power supply unit 75, Have The power supply unit 75 supplies power to the buffer memories 71a to 71c, the timer 72, the control circuit 73, and the wireless communication circuit 74.
  • the power supply unit 75 is, for example, a storage battery.
  • FIG. 18 is a timing chart showing timings when the timer shown in FIG. 17 notifies the buffer memory and the control circuit.
  • the timer 72 notifies the buffer memory 71a to 71c of the timing TP1 for acquiring the detection value in a cycle P3, and notifies the control circuit 73 of the timing TP2 for reading the temperature data in the cycle P3.
  • the timer 72 shifts these timings so that the timing TP2 comes after the timing TP1.
  • Each memory of the buffer memories 71a to 71c acquires a detection value from the temperature sensor 37 at the timing TP1, and stores the acquired time together with the detection value as a detection time.
  • a memory (not shown) provided in the control circuit 73 stores address information of the section 31 of each temperature sensor 37 connected to the buffer memories 71a to 71c.
  • the control circuit 73 acquires the detection value and time data from the buffer memories 71a to 71c at the timing TP2. Then, the control circuit 73 generates three temperature data including address information, time data, and a detected value for each temperature sensor 37, and sequentially passes the generated three temperature data to the wireless communication circuit 74.
  • the wireless communication circuit 74 sequentially receives the three temperature data from the control circuit 73, the wireless communication circuit 74 converts the three temperature data into wireless signals of a communication protocol common to the communication means 56, and sequentially outputs the wireless signals.
  • the number of wireless communication means can be reduced.
  • the case where one wireless unit 70 is provided on each of the support plates 34a to 34c has been described, but the number of the wireless units 70 is not limited to this case.
  • one wireless unit 70 may be provided in each of the storage shelves 30a to 30c.
  • the wireless unit 70 is connected to the plurality of temperature sensors 37 via wiring extending in the up-down direction (Z-axis arrow direction) shown in FIG. In this case, since the length of the wiring in the horizontal direction is suppressed, it is not necessary to receive installation restrictions on a horizontal plane.
  • the wireless unit 70 is operated by a storage battery, for example, it is not necessary to connect a power cable from the outside to the wireless unit 70, and it is not necessary to be restricted by the power cable installation. Since the power cable is not connected to the wireless unit 70, the vehicle and the worker who store and unload the stored items are not restricted by the movement due to the power cable. Furthermore, when changing the layout in the warehouse, since the power cable is not connected to the wireless unit 70, the storage shelves 30a to 30c can be moved freely.
  • the wireless unit 70 includes a timer 72 that measures time.
  • the wireless unit 70 transmits time data indicating the time when each temperature sensor 37 detects the temperature to the remote controller 50 in association with the temperature data.
  • all the wireless units 70 synchronize the times of the timers 72 with each other. Thereby, the detection time of the temperature which each temperature sensor 37 detects can be synchronized.
  • the detected values that the remote controller 50 acquires from all the temperature sensors 37 are the temperatures detected by the temperature sensors 37 at the same timing.
  • the air conditioner 1 can acquire more accurate temperature distribution information.
  • the wireless unit 70 may have a function of automatically turning on and off.
  • the storage battery continues to supply power to the control circuit 73 and the timer 72.
  • the control circuit 73 causes the storage battery to supply power to these circuits, When the operation ends, the power supply may be stopped. Thereby, consumption of the electric power of a storage battery can be suppressed.
  • the wireless unit 70 may have a display unit not shown in the figure, and the control circuit 73 may cause the display unit to perform various displays with light. For example, when the capacity of the storage battery decreases, the control circuit 73 can blink the light on the display unit to prompt the operator to replace the battery. When there is a temperature sensor 37 whose detected value indicates an abnormal value, the control circuit 73 can notify the operator that there is a temperature sensor 37 that has detected the abnormal value by blinking light on the display unit.
  • the blower installed in the warehouse may include a light receiving device such as a camera, and when the light receiving device detects blinking of light, the air direction may be directed to the detected light direction.
  • the air blown from the blower suppresses the temperature in the storage area from becoming high.
  • the communication unit 56 may detect the position of each wireless unit 70 based on the radio wave intensity of a signal received from the wireless unit 70. For example, the longer the distance between the communication means 56 and the wireless unit 70, the lower the radio wave intensity. Furthermore, each wireless unit 70 may transmit the temperature data to the communication means 56 by associating the detection values acquired from the plurality of temperature sensors 37 connected to the unit with the addresses of the sections 31 in the determined order. . In this case, the communication unit 56 estimates the position of the wireless unit 70 in the warehouse from the radio wave intensity of the temperature data received from the wireless unit 70.
  • the communication unit 56 can identify the storage shelf and the section 31 in which each detected value is detected by associating each detected value of the three temperature data received from the wireless unit 70 with an address in a predetermined order. For this reason, the address information may not be included in the temperature data transmitted from the wireless unit 70 to the communication unit 56 wirelessly. Since the amount of data to be wirelessly communicated is small, the load of wireless communication between the communication means 56 and the wireless unit 70 is reduced.
  • the air conditioner 1 includes an environment detection sensor 36 that detects the temperature of each section of the plurality of sections in which the air-conditioning target space is partitioned in the horizontal direction and the vertical direction, and air conditioning target space. It has the load side unit 10 to harmonize.
  • the environment detection sensor 36 detects the temperature of each section for a plurality of sections in which the air-conditioning target space is divided in the horizontal direction and the vertical direction.
  • Stored items can be placed in a compartment with a temperature suitable for storage.
  • the air conditioning load is reduced. Since the section where the stored items are not placed is not air-conditioned more than necessary, power consumption can be suppressed.
  • the refrigeration cycle control means 57 sets the target temperature of the designated section among the plurality of sections 31. For example, when the target temperature for the designated section is not input, the refrigeration cycle control means 57 sets the current temperature of the designated section as the target temperature and maintains the air conditioning control. When the target temperature for the designated section is input, the refrigeration cycle control means 57 sets the input target temperature as the target temperature for the specified section. Since the target temperature is automatically set when the temperature of the section 31 in which the stored item is stored is a temperature suitable for storage, the user does not need to input the target temperature and can save input.
  • the refrigeration cycle control means 57 may determine the target time tm until the temperature of the designated section reaches the target temperature Ts from the refrigeration capacity and the volume of the air-conditioning target space. It is determined whether or not the air conditioner 1 satisfies the condition for cooling the stored item to the target temperature Ts within the target time tm. If the condition is not satisfied as a result of the determination, the control is performed to increase the refrigerating capacity. It is suppressed that the time for the temperature of the object to drop to the target temperature Ts is lengthened. As a result, it is possible to prevent quality deterioration of stored items.
  • the plurality of temperature data forms a three-dimensional data structure in which positions and temperatures are associated with each section. From the three-dimensional data, it is possible to predict the temperature distribution of the space between the two compartments 31 in the diagonal direction as well as in the horizontal direction and the vertical direction in the air conditioning target space. Moreover, if more temperature sensors 37 are installed in the warehouse, the air conditioner 1 can also acquire the temperature at a position that is a blind spot of the cold air supply. In a warehouse, a blind spot of cold air supply is likely to occur due to pillars, shelves and stored items. Therefore, there is an advantage that the air conditioning apparatus 1 can easily find a place where the temperature tends to rise as the number of the temperature sensors 37 is increased.
  • each temperature data may have time data.
  • time indicated by the plurality of time data included in the plurality of temperature data is the same, three-dimensional data indicating the temperature distribution at the same time can be constructed.
  • the display device 53 may display a plurality of temperature data corresponding to the plurality of sections 31.
  • the user can determine in which section 31 the stored item should be placed by looking at the temperature of each section 31.
  • FIG. The second embodiment is a case where the environment detection sensor is an infrared sensor.
  • symbol same as the structure demonstrated in Embodiment 1 is attached
  • FIG. 19 is an external perspective view showing an example of a warehouse to which the air-conditioning apparatus according to Embodiment 2 of the present invention is applied.
  • the warehouse 40 c to which the air conditioner 1 a according to the second embodiment is applied is a warehouse in which the storage shelves 65 are stacked on the floor 43 without a storage shelf.
  • the degree of freedom regarding the installation of stored items is further improved as compared with a warehouse in which storage shelves and pillars are provided in a space where stored items are placed.
  • FIG. 19 shows the case where the stored item 65 is placed directly on the floor 43, but the stored item 65 is stored in the warehouse 40c while being placed on a loading platform such as a pallet. Also good.
  • the air-conditioning apparatus 1a of the second embodiment has an infrared sensor 38 as the environment detection sensor 36.
  • the infrared sensor 38 is attached to the ceiling 42.
  • FIG. 20 is a block diagram illustrating a configuration example of the control unit of the air-conditioning apparatus according to Embodiment 2 of the present invention.
  • the control unit 51a includes a communication unit 56, a refrigeration cycle control unit 57, and a section determination unit 59.
  • the infrared sensor 38 detects an object whose temperature differs by a certain temperature or more with respect to the ambient temperature. The constant temperature varies depending on the sensitivity of the infrared sensor 38, but is, for example, 5 [° C.].
  • the infrared sensor 38 detects the detected surface temperature Tg of the object, the size Sg of the object, the distance Lg from the reference position to the object, and the direction Dg from the reference position to the object.
  • the size Sg is a size whose temperature is different from the ambient temperature.
  • the reference position is the installation position of the infrared sensor 38.
  • the infrared sensor 38 passes the detected surface temperature Tg, size Sg, distance Lg, and direction Dg to the compartment determination means 59 via the communication means 56.
  • the section determination unit 59 divides the air-conditioning target space into a plurality of sections 31 based on the detection value received from the infrared sensor 38, and stores the temperature data including the coordinate information and the temperature of the section 31 in the memory 54 in association with the section 31. To do. Also in the second embodiment, three-dimensional data is constructed from a plurality of temperature data stored in the memory 54.
  • the section determination means generates three-dimensional data. For example, consider a case where the user places the stored item 65 a on the floor 43 while no stored item is placed on the floor 43.
  • the infrared sensor 38 detects the stored item 65a having a temperature different from the ambient temperature
  • the information of the surface temperature Tg, the size Sg, the distance Lg, and the direction Dg of the stored item 65a is passed to the section determining unit 59.
  • the section determination unit 59 determines whether the detected object is a person or a stored item by comparing the size Sg with the size threshold Sth. To do.
  • the memory 54 stores a size threshold value Sth.
  • the section determining unit 59 sets the section 31 having the center point of the two-dimensional shape of the detected size Sg as the center of gravity of the rectangular parallelepiped.
  • the length of each side of the rectangular parallelepiped of the section 31 may be determined in advance, or may be estimated from the detected size according to the procedure determined by the section determination means 59.
  • the memory 54 stores the length of each side.
  • the section determination means 59 calculates coordinate information of the stored item 65a from the coordinates of the installation position of the infrared sensor 38 and the detected distance Lg and direction Dg.
  • the memory 54 stores the coordinates of the installation position of the infrared sensor 38.
  • the section determination unit 59 stores temperature data including the set coordinate information of the section 31 and the surface temperature Tg in the memory 54 via the communication unit 56.
  • the surface temperature of the stored item 65a becomes a temperature equal to or lower than a certain temperature with respect to the ambient temperature when a certain time elapses. Subsequently, when the user places the stored item 65b shown in FIG. 19 on the floor 43, the infrared sensor 38 detects the stored item 65b having a temperature different from the ambient temperature.
  • the section determination means 59 sets the section 31 of the stored item 65b based on the detection value received from the infrared sensor 38, and stores the temperature data of the section 31 in the memory 54, similarly to the stored item 65a.
  • FIG. 21 is a schematic diagram showing an example of a three-dimensional data structure stored in the control unit in the air-conditioning apparatus according to Embodiment 2 of the present invention.
  • the section determining means 59 is newly set.
  • the section 31 of the stored item 65 is set.
  • the section determination unit 59 then generates temperature data for the set section 31 and updates the three-dimensional data stored in the memory 54.
  • three-dimensional data as shown in FIG. 21 is constructed.
  • the section determination unit 59 notifies the communication unit 56 of information on the air conditioning control executed by the refrigeration cycle control unit 57.
  • the communication unit 56 manages the three-dimensional data corresponding to the air conditioning control information notified from the section determination unit 59. Thus, for each air conditioning control performed by the refrigeration cycle control means 57, three-dimensional data indicating the temperature distribution of the air conditioning target space is accumulated in the memory 54.
  • the number of infrared sensors 38 installed in the warehouse is not limited to one and may be plural.
  • the infrared sensor 38 may not be detected when a new item is placed in a place where the infrared sensor 38 becomes a blind spot. Therefore, it is desirable to install a plurality of infrared sensors 38 in the warehouse and reduce the number of places where the infrared sensors 38 become blind spots as much as possible.
  • the memory 54 stores the identifier of each infrared sensor 38 and the coordinate information of the installation position.
  • the section determination unit 59 erroneously determines one newly placed storage item as a plurality of storage items by associating the coordinate information of the plurality of infrared sensors 38 with the detection values acquired from the plurality of infrared sensors 38. To prevent it.
  • the air conditioner 1a of the second embodiment generates three-dimensional data indicating the temperature distribution in the space using the detection value of the infrared sensor 38.
  • the air conditioner 1a according to the second embodiment since it is not necessary to provide a plurality of temperature sensors 37 in the warehouse, a warehouse in which a storage shelf and a pillar are not provided in the warehouse, and a pole in the warehouse are installed. This is especially effective for warehouses that cannot.
  • Embodiment 3 is a case where the air-conditioning apparatus described in Embodiment 1 performs air-conditioning control with reference to air-conditioning control information of other air-conditioning apparatuses.
  • symbol same as the structure demonstrated in Embodiment 1 is attached
  • FIG. 22 is a diagram illustrating a configuration example of an air conditioning control system to which the air-conditioning apparatus according to Embodiment 3 of the present invention is applied.
  • the air conditioning control system 200 includes the air conditioner 1 and a server 90. As shown in FIG. 22, the air conditioning apparatus 1 is connected to a server 90 via a network 100. In addition, other air conditioners 1201 to 120n (n is an integer of 2 or more) are connected to the server 90 via the network 100.
  • the server 90 analyzes the air conditioning control executed by the air conditioning apparatus 1 and extracts the air conditioning control information suitable for the air conditioning apparatus 1 by referring to the history information including the air conditioning control information of the other air conditioning apparatuses 1201 to 120n. The extracted air conditioning control information is provided to the air conditioner 1.
  • the network 100 is, for example, the Internet.
  • the communication means 56 of the air conditioner 1 and the remote controller (not shown) of the air conditioners 1201 to 120n and the server 90 communicate with each other using a common communication protocol.
  • the communication protocol is, for example, TCP (Transmission Control Protocol) / IP (Internet Protocol).
  • the communication unit 56 of the air conditioner 1 stores the air conditioning environment information and the air conditioning control information in the memory 54, and updates the information stored in the memory 54 when the information changes.
  • the communication means 56 of the air conditioner 1 and the remote controllers of the air conditioners 1201 to 120n transmit the air conditioning environment information to the server 90 via the network 100 at regular intervals.
  • the communication unit 56 of the air conditioner 1 and the remote controllers of the air conditioners 1201 to 120n transmit the air conditioning control information to the server 90 via the network 100 at the timing when the air conditioning control content is changed.
  • the air conditioning environment information is, for example, information such as the type of stored items in a warehouse to which the air conditioner is applied, the volume of the air conditioning target space, and the positional relationship including the distance between the stored items and the temperature sensor 37 for each temperature sensor 37. including.
  • the air conditioning environment information may include information on the outside air temperature.
  • the air conditioning environment information may include information on the number of doors provided in the warehouse and the position of the doors.
  • the air conditioning control information includes, for example, the operation data of the heat source side unit, the load side unit, and the blower, the time taken to lower the average temperature in the warehouse to a certain temperature, the presence / absence of the wind direction adjustment of the load side unit, and the wind direction. Includes information such as angles.
  • the operation data of the heat source side unit is, for example, the rotation speed of the compressor.
  • the operation data of the load side unit is, for example, the opening degree of the expansion device and the rotation speed of the fan.
  • the operation data of the blower is, for example, the number of blowers and the air volume and direction of each blower.
  • FIG. 23 is a block diagram illustrating a configuration example of the server illustrated in FIG.
  • the server 90 includes a storage device 91 and a control device 92.
  • the control device 92 includes a memory 93 that stores a program and a CPU 94 that executes the program.
  • the storage device 91 is, for example, a hard disk drive device.
  • the storage device 91 stores history information indicating time-series changes in the air conditioning environment information and the air conditioning control information corresponding to the warehouse to which the air conditioning devices 1 and 1201 to 120n are applied.
  • the control device 92 stores the air conditioning environment information and the air conditioning control information received from the air conditioning devices 1 and 1201 to 120n in the storage device 91. Moreover, the control apparatus 92 will refer to the historical information which the memory
  • FIG. 24 is a flowchart showing an operation procedure of the air-conditioning apparatus according to Embodiment 3 of the present invention.
  • the operations in steps S201 to S206 shown in FIG. 24 are the same as those in steps S101 to S106 described with reference to FIG. 14, and thus detailed description thereof is omitted in the third embodiment.
  • the refrigeration cycle control means 57 determines whether or not the time t measured by the timer 58 has reached the target time tm (step S206). When the time t reaches the target time tm, the process proceeds to step S207. In step S207, the refrigeration cycle control means 57 determines whether or not the detection value of the temperature sensor 37 in the designated section has reached the target temperature Ts within the target time tm. As a result of the determination in step S207, when the temperature of the designated section does not reach the target temperature Ts within the target time tm, the refrigeration cycle control means 57 takes action to make the temperature of the designated section reach the target temperature Ts without increasing the refrigeration capacity.
  • the communication means 56 is instructed to request the server 90 for a countermeasure.
  • the communication unit 56 refers to a warehouse approximate to the current air conditioning environment information and air conditioning control information in accordance with an instruction from the refrigeration cycle control unit 57 (step S208), and includes a countermeasure including the air conditioning environment information and the air conditioning control information.
  • a request signal is transmitted to the server 90.
  • the control device 92 of the server 90 receives the countermeasure request signal from the air conditioner 1, the control device 92 refers to the history information stored in the storage device 91. And when there exists the log
  • the communication unit 56 When receiving the supplement control information from the server 90 (step S209), the communication unit 56 passes the received supplement control information to the refrigeration cycle control unit 57. On the other hand, if there is no warehouse history information approximate to the air conditioning environment information and the air conditioning control information included in the countermeasure request signal, the control device 92 does not return anything to the air conditioner 1 in response to the countermeasure request signal.
  • FIG. 25 is a schematic diagram for explaining the operation of steps S208 to S209 shown in FIG.
  • the air-conditioning apparatus 1 acquires complementary control information using the type of stored item in a warehouse as a search condition.
  • the air conditioner 1 stores the history of the warehouse of each stored item such as the stored items A, B, and C stored in the server 90 as shown in FIG. With reference to the information, the warehouse of the stored item approximate to the stored item X is specified. If the stored item X is similar to the stored item B, the air conditioner 1 stores the air conditioning control information of the air conditioner installed in the warehouse storing the stored item B in step S209. Obtain from information.
  • the refrigeration cycle control unit 57 When the refrigeration cycle control unit 57 receives the supplement control information from the communication unit 56, the refrigeration cycle control unit 57 changes the air conditioning control content according to the received supplement control information (step S210). For example, when a blower is installed in the warehouse 40, the refrigeration cycle control means 57 performs control to direct the wind direction of the blower toward a designated section. The refrigeration cycle control means 57 returns to step S205 after step S210.
  • step S208 if the refrigeration cycle control means 57 cannot acquire the air conditioning control information from the server 90, the refrigeration capacity is increased (step S211), and the process returns to step S205.
  • step S211 the refrigeration cycle control means 57 increases the rotational speed of the compressor 21, for example.
  • step S212 when the temperature of the designated section reaches the target temperature Ts within the target time tm, the refrigeration cycle control means 57 decreases the refrigeration capacity (step S212).
  • step S212 the refrigeration cycle control means 57 reduces the rotational speed of the compressor 21, for example.
  • control device 92 of the server 90 analyzes a large amount of history information stored in the storage device 91 regardless of whether or not a countermeasure request signal is received from the air conditioner 1, and realizes an optimal air conditioning environment. May be provided to the air conditioner 1.
  • the control device 92 uses the layout information on the other warehouse to create a layout with good cooling efficiency. You may provide to the air conditioning apparatus 1.
  • the air conditioning environment information or the air conditioning environment information includes the operation time of the air conditioner 1
  • the control device 92 provides information that suggests replacement of the air conditioner when the operation time has reached the reference time for replacement. You may provide to the air conditioning apparatus 1.
  • the control device 92 analyzes the current operation information of the air conditioner 1 and efficiently stores / removes stored items. Operation information may be provided to the air conditioner 1.
  • control device 92 may acquire weather information and traffic information of the area where the warehouse 40 is installed from another server via the network 100. In this case, the control device 92 predicts a change in the outside air temperature from the weather information, predicts the storage / retrieval time of the stored item from the traffic information, and provides the air conditioner 1 with air conditioning control based on these prediction results. Can do.
  • the air conditioner 1 may provide the server 90 with three-dimensional data indicating the temperature distribution of the entire warehouse.
  • the control device 92 analyzes the three-dimensional data, and air-conditions the zoning air conditioning control information for controlling the temperature of the section 31 where temperature management is not important and the temperature of the section 31 where temperature management is important.
  • the air conditioner 1 performs air conditioning according to the zoning air conditioning control information provided from the server 90, so that not only the energy management of the warehouse can be enhanced, but also low power consumption can be realized.
  • the air conditioner 1 of the third embodiment refers to the history information of the air conditioning control of another air conditioner, performs the air conditioning control using the history information, and brings the temperature of the designated section close to the target temperature Ts. is there.
  • the air conditioner 1 when the temperature of the designated section where the stored items are placed is brought close to the target temperature Ts, the air conditioner 1 is brought into the air conditioning environment of the air conditioner 1 instead of the control for increasing the refrigeration capacity.
  • Air conditioning control performed in the past in an approximate warehouse can be applied.
  • the air conditioner 1 employs control that increases power consumption by referring to the history information of other air conditioners and utilizing the results of many air conditioning controls performed in the past in similar air conditioning environments. I don't need to. As a result, the air conditioner 1 can suppress an increase in power consumption.
  • the third embodiment may be applied to the second embodiment.
  • Embodiment 4 FIG. In the first to third embodiments, the case where the user designates a section for storing stored items in the air conditioner has been described. However, the fourth embodiment is an object detection sensor that detects the presence of an object for each of a plurality of sections. It is what has. In this Embodiment 4, the code
  • FIG. 26 is an external perspective view showing a configuration example of a storage shelf in a warehouse to which the air-conditioning apparatus according to Embodiment 4 of the present invention is applied.
  • FIG. 27 is a block diagram illustrating a configuration example of a remote controller of the air-conditioning apparatus according to Embodiment 4 of the present invention. Since the storage shelves 30a to 30c have the same configuration, the configuration of the storage shelf 30a will be described here, and the description of the storage shelves 30b and 30c will be omitted.
  • an object detection sensor 45 is provided for each section 31 in the storage shelf 30a.
  • the object detection sensor 45 is, for example, an optical sensor. All the object detection sensors 45 provided in the storage shelves 30a to 30c are connected to the communication means 56.
  • the object detection sensor 45 outputs an on signal when an object is detected, and outputs an off signal when no object is detected.
  • the connection means between the object detection sensor 45 and the communication means 56 may be wired or wireless.
  • the memory 54 stores the addresses of the sections 31 corresponding to all the object detection sensors 45.
  • the communication means 56 stores the detection values of all the temperature sensors 37 and the detection values of all the object detection sensors 45 in the memory 54 in association with the addresses. For example, in the table shown in FIG. 8, the communication unit 56 records the detection value of the object detection sensor 45 in correspondence with the address information. Further, the communication unit 56 notifies the refrigeration cycle control unit 57 of the section 31 corresponding to the object detection sensor 45 whose detection value is an ON signal.
  • the refrigeration cycle control means 57 sets the section notified from the communication means 56 as a designated section. As in the first embodiment, the refrigeration cycle control means 57 controls the refrigeration cycle of the refrigerant circuit 60 so that the temperature of the designated section matches the target temperature Ts within a certain range. When there are a plurality of sections 31 notified from the communication means 56, the refrigeration cycle control means 57 sets the notified sections 31 as designated sections, and the average temperature of the plurality of designated sections is constant with the target temperature. The refrigeration cycle is controlled so as to be consistent with each other.
  • the object detection sensor 45 may be an RFID (Radio Frequency Identification) reader.
  • RFID Radio Frequency Identification
  • an RFID tag may be attached to each stored item.
  • the wireless unit 70 shown in FIG. 17 may be applied.
  • a plurality of object detection sensors 45 are connected to the control circuit 73, and the control circuit 73 transmits the detection value of the object detection sensor 45 to the remote controller 50 via the wireless communication circuit 74 at a constant cycle.
  • the wireless unit 70 may have a display unit not shown in the figure, and the control circuit 73 may cause the display unit to display various displays with light. For example, when the control circuit 73 determines from the detection value of the object detection sensor 45 that the stored item is placed in the section 31, the display unit is turned on to indicate that the stored item is in the section 31. Can be informed.
  • FIG. 28 is an external perspective view showing another configuration example of a warehouse to which the air-conditioning apparatus according to Embodiment 4 of the present invention is applied.
  • the object detection sensor 45a is connected to the communication means 56 of the control unit 51a shown in FIG.
  • the object detection sensor 45a captures images at a constant period and outputs image data acquired by capturing.
  • the communication means 56 stores the image data acquired from the object detection sensor 45a in the memory 54 and stores it for a certain time.
  • the section determination means 59 determines the position where the stored item is placed using a plurality of image data stored in the memory 54. For example, the section determination unit 59 compares two pieces of image data stored in the memory 54 and the stored time is close to the current time, and whether the stored item is placed due to the difference between the two pieces of image data. Determine whether or not.
  • the block determining unit 59 sets the space occupied by the stored item as the designated block. Then, the section determination unit 59 reads the detection value of the infrared sensor 38 corresponding to the designated section, and stores the temperature data in the memory 54 in association with the coordinate information of the designated section. The section determination unit 59 may determine the position where the stored item is placed by analyzing the image data acquired from the object detection sensor 45a and the detection value acquired from the infrared sensor 38.
  • the section determination unit 59 can more accurately identify the stored item from the difference in size between the stored item and the worker by analyzing the image data in the warehouse. The accuracy of determination is improved. Further, when the worker brings the stored item into the warehouse, the section determination means 59 recognizes that the stored item has been carried in from the image data even if the temperature of the stored item is close to the ambient temperature in the warehouse. This improves the detection accuracy of stored items.
  • the object detection sensors 45 and 45a detect the section 31 in which the stored item is placed. There is no need to input the position where the stored item is placed. Therefore, the user can save the input operation.
  • the presence / absence of stored items and the temperature are detected for each of the plurality of sections 31 in the warehouse.
  • Information on the temperature and the temperature of the section 31 where the stored items are not placed in the warehouse can be acquired.
  • the air conditioning apparatuses 1 and 1a can reliably manage the cooling of the stored items by managing the temperature of the section 31 in which the stored items are stored. As a result, the quality of stored items can be improved.
  • the air conditioners 1 and 1a can save energy by weakening the cooling of the section 31 that does not require cooling.
  • the fourth embodiment may be applied not only to the first embodiment but also to the second and third embodiments.

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Abstract

Ce dispositif de climatisation comprend : des capteurs de détection d'environnement qui détectent les températures d'une pluralité de cloisons respectives formées oar division d'un espace cible de climatisation dans les directions horizontale et verticale; et une unité côté charge pour climatiser l'espace cible de climatisation.
PCT/JP2018/019677 2018-05-22 2018-05-22 Dispositif de climatisation et entrepôt équipé de celui-ci WO2019224916A1 (fr)

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JP7515711B2 (ja) 2021-08-05 2024-07-12 エルジー エナジー ソリューション リミテッド 地番ベース管理システムおよび地番を用いた作業物追跡システム

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